body,ul,li{
    margin: 0;
    padding: 0;

}
ul{
    list-style-type: none;
}
/*!*topbar*!控制高度*/
.topbar{
    background-color: black;
    height: 40px;
}
.center{
    margin: 0 auto;
    width: 1200px;
}
.center::before ,.center::after{
    content: "";
    display: table;
}
.center::after{
    clear: both;
}
.header-logo{
    float: left;
    width: 22px;
    height: 35px;
    border:1px solid black;
}
.header-nav{
    float: left;
    width: 350px;
    height: 35px;
    border:1px solid black;
}
.header-nav .nav-ul{
    width: 350px;
    height: 35px;
    padding:0px 0px 80px 18px ;
}
.header-nav .nav-ul .nav-iteam {
    float: left;
    display: block;
    color: white;
}
.header-search{
    float: right;
    width: 800px;
    height: 35px;
    border:1px solid black;
}
.top-title{
    text-align: center;
    height: 600px;
    background: black;
}
.top-1{
    color: white;
    font-size: 25px;
}
.top-2{
    color: white;
    font-size: 20px;
    margin-top: 30px;
}
.top-3{
    color: white;
    font-size: 20px;
    margin-top: 30px;
}
.top-4{
    color: blue;
    margin-top: 80px;
}
.top-5{
    color: blue;
    margin-top: 280px;
}
.center-title{
    display: inline-block;
    margin-left: 450px;
}
.center-1{
    font-size: 35px;
}
.center-2{
    color: blue;
}
.center-3{
    margin-top: 40px;
    font-size: 12px;
    color: #e0e0e0;
}
.center-4{
    color: blue;
    margin-top: 16px;
}
.center-5{
    display: inline-block;
    margin-left: 40px;
}
.center-title2{
    display: inline-block;
    margin-left: 450px;
}
.center-t1 {
    font-size: 45px;
}
.center-t2 {
    font-size: 45px;
}
.center-t3{
    color: blue;
}
.center-t4{
    display: inline-block;
    margin-left: 40px;
}
.center-title3{
    display: inline-block;
    margin-left: 450px;
}
.center-t5 {
    font-size: 35px;
}
.center-t6 {
    font-size: 35px;
}
.center-t7{
    display: inline-block;
    margin-left: 40px;
}
.text01{
    font-size: 10px;
    color: #e0e0e0;
    margin-left: 100px;
    margin-right:100px;
}
.text02{
    text-align: center;
    color: blue;
    font-size: 14px;
}
.text03{
    text-align: center;
    font-size: 14px;
}